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Photo interrupters offer alternative to switches in IR applications

Posted: 07 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:bpi series? actuator?

American Bright Optoelectronics has introduced its new photo interrupter family that is designed for use in IR/optical detection applications such as copiers, printers, high-speed industrial machinery, garage door openers and photo encoder-based devices.

Featuring high-precision optics and a variety of gate widths, the BPI series of miniature photo interrupters can be used as alternatives to conventional switches, which may demonstrate backlash or delays in detection speed and accuracy, according to the company.

Touting non-contact detection, long-life, low-power consumption, high reliability and high precision, the BPI series offers a choice of 24 slotted, seven actuator and five reflective types, including mini-reflective models available in axial and gull-wing packages. Several miniature models are featured in harnessed/connectorized styles, providing a "plug-n-play" unit for replacement and lower installation cost, said the company.

Actuator types include levered operation in device packages as small as 0.374 in. (9.5 mm) x 0.394 in. (10.0 mm) from base unit to optic line. Light beam interruption of the actuator units range from 0.35 VOL (@IOL=16 mA). Forward voltages (VF) of slotted types range from 1.5 V maximum (@IF=20 mA) with gap widths from 0.125 in. (3.18 mm). Encoder styles feature two-bit PTR and dual-channel OEIC (Rambo OEIC) functions. Custom functions and packaging is available. All configurations are manufactured in compliance with lead free, RoHS compliant materials and processes.

The BPI series is priced from $0.15 each. Prices start at $0.30 each for the BPI series with PC-board assembly in production quantities.

- Gina Roos

eeProductCenter




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